baber/WOPTO huggingface dataset:
Patent GB-1454247-A (GB)
IPC: C07D311/50
Filed: 1973-04-19
Abstract: 1454247 4-Hydroxy-3-nitro-coumarins BEECHAM GROUP Ltd 19 April 1974 [19 April 1973] 23297/75 Divided out of 1432809 Heading C2C Novel compounds of the Formula I or pharmaceutically acceptable salts thereof, in which R 1 , R 2 , R 3  and R 4  each are H, C 1-6 -alkyl or alkoxy, phenoxy, benzyloxy, phenyl, benzyl, pyridyl, hydroxy, nitro or halogen and any adjacent two of the groups R 1 , R 2 , R 3  and R 4  taken together represent a butadienylene or tetramethylene, but excluding 4-hydroxy-3- nitro-coumarins, in which R 1  to R 4  are all hydrogen or the R substituent(s) is 6-methyl, 6,8-dimethyl, 7-isopropyl-5-methyl, 8-isopropyl- 5 - methyl, 6 - chloro, 7 - chloro, 7 - bromo, 7-hydroxy, 7-hydroxy-6-nitro, 7-hydroxy-8-nitro, 7 - hydroxy - 6,8 - dinitro, 5 - methoxy, 6 - methoxy, 7 - methoxy, 7 - methoxy - 8- methyl or 6-nitro-, may be prepared by nitration of a compound II Pharmaceutical compositions of the compounds I are claimed in Specification 1,432,809.
Patent GB-189252-A (GB)
Title: Improvements in or relating to ovens
IPC: F27B5/00
Filed: 1921-09-02
Abstract: 189,252. Gehnrich, M. Sept. 2, 1921. Chambers, details of construction of; heating fittings.-An oven for drying materials giving off combustible vapours is provided with a floor capable of bearing heavy weights, and supported on members which admit preheated air into the interior of the oven. Fig. 1 shows an oven which has a double-waned casing a enclosing a baking- chamber b and combustion-chamber c, and is divided into compartments by transverse and longitudinal partitions d. The hot gases from burners i arranged in the combustion-chambers c pass upwardly through tubes n, located at the sides of the bake-compartments, to flues m from which they escape to a chimney or to the main flue o connected to each compartment. A perforated floor p, having tracks q, is arranged above the top plate e of the combustion-chamber and supported on tubular members s, open at the bottom r, and having a head t which is provided, as shown in Figs. 3 and 4, with openings u for the escape of the incoming air, and grooves w, 13, for supporting the turned-in ends 12 of the sections of the floor p and bracing-members 14 respectively. The tubular member s are secured in place by nuts 15 screwed up against the top and bottom plates e, g of the combustion-chamber. The hot air, on entering the space v, mixes with the heavy vapours from the oven and passes off through a flue 16 to the main flue o. A baffleplate k is arranged above the burners i to protect the plate e.
Patent GB-1113790-A (GB)
Title: Production of amide or ester interpolymers
IPC: C08F20/62
Filed: 1965-06-01
Abstract: Amide or ester interpolymers are prepared by interpolymerizing a mixture of monomers comprising an amide or hydroxyalkyl ester or polyalkylene glycol monoester of an ethylenically unsaturated carboxylic acid and at least one copolymerizable compound in solution in an organic solvent and in the presence of at least 0.02% by weight of the monomers of hydrogen peroxide as catalyst. The catalyst is generally employed in the form of an aqueous solution, e.g. of 20-90% by weight concentration. Suitable amides are those of acrylic, methacrylic, itaconic, crotonic and maleic acids and N-substituted derivatives thereof.  The amide groups can be reacted with aldehydes, e.g. formaldehyde or a homologue thereof, before or after polymerization to form N-alkylol amide groups, which may be etherified with an alcohol. Suitable hydroxy-ester monomers are hydroxyalkyl esters and polyalkylene glycol monoesters of acrylic, methacrylic, ethacrylic, crotonic, maleic, fumaric and itaconic acids and of acidic esters of such dicarboxylic acids.  The amides and hydroxy-esters can be interpolymerized with each other and with other monomers such as alkyl acrylates and methacrylates, styrene and halo- or alkyl-styrenes, acrylonitrile, methacrylic acid, butadiene, 2-chloro-butene-1, 1,1-dichloroethylene, vinyl acetate or butyrate, allyl chloride, dimethyl maleate, divinyl benzene, diallyl itaconate and triallyl cyanurate.  Solvents for the polymerization include alcohols, glycol or polyglycol monoethers, esters, ketones, aliphatic or aromatic hydrocarbons, and mixtures thereof.  A chain-modifying agent, e.g. t-dodecyl mercaptan, may be used in the polymerization. The interpolymers are useful in coating applications, for which purpose they are compounded with conventional additives and baked at temperatures of 150-350 DEG  F.
Patent GB-812642-A (GB)
Title: Improvements relating to the production of abrasive wheels
Inventor: REDFERN BERNARD
IPC: B24D5/16
Filed: 1956-07-30
Abstract: 812,642. Moulding abrasive wheels. CARBORUNDUM CO. Ltd. June 24,1957 [July 30, 1956], No. 23419/56. Class 87(2). [Also in Group XXIII]  An abrasive wheel (see Group XXIII) is formed by pressing powdered material between plungers having corresponding concentric or spiral ridges and flat peripheral rim sections. The central part A of the wheel may be formed from a bronze powder composition, and may be thinner (see Fig. 3, not shown), than the rim.
Patent GB-1151903-A (GB)
Title: Improvements in or relating to Printed Circuits.
Inventor: TOWELL ROGER PERCIVAL
IPC: F01D7/00
Filed: 1965-06-02
Abstract: 1,151,903. Direct connections. ELECTRIC & MUSICAL INDUSTRIES Ltd. 19 May, 1966 [2 June, 1965], No. 23428/65. Heading H2E. [Also in Division H1] In a printed circuit assembly, raised conductive portions 9 are added to printed wiring 7 and a semi-conductor integrated circuit chip 10 is connected to such raised portions without the prior addition of conductors to the semiconductor chip. A ceramic substrate 1 is provided on one face, by fired screen printing, with resistors (2, Fig. 1, not shown), and conductors and capacitor electrodes (3, 4, Fig. 2, not shown). A layer 5 of glass frit having apertures therethrough at predetermined points is bonded over the said one face, and a pattern of conductors 7 and further capacitor electrodes (8, Fig. 4, not shown) is formed by depositing conductive material on layer 5 and through the apertures therein, as by evaporation through a mask. Further evaporation produces raised portions 9, to which chip 10 is connected by ultra-sonic welding; alternatively, the portions 9 are pre-tinned and hot gas is applied to solder the chip thereto. The substrate may alternatively be of glass, and the layer 5 of SiO; instead of using firing techniques, circuit elements may be formed by evaporation, printing, pyrolytic deposition, or cataphoresis.
Patent GB-183383-A (GB)
Title: Improvements in and relating to folding files for correspondence and other documents
IPC: B42F9/00
Filed: 1921-09-03
Abstract: 183,383. Austen, T. H. L. Sept. 3, 1921. Clamping-devices; covers.-A folding file comprises a cover 1 of stout paper folding along the line 2-2, with a cardboard stiffening-piece 5, around one edge of which are sprung the reflexed ends 4 of a loop of spring wire, the stiffening- member being secured to the cover by gluing a strip 6 over it, or by means of staples, eyelets, &c.
Patent GB-667696-A (GB)
Title: Jet-propelled aircraft
IPC: F02K1/04
Filed: 1949-09-12
Abstract: 667,696. Jet-propelled aircraft. FIAT SOC. PER AZIONI. Sept. 12, 1949 [Sept. 21, 1948], No. 23534/49. Class 4. In an aircraft comprising one or more jet propulsion units arranged in the fuselage body, the exit nozzle for the combustion products forming the propelling jet is in the form of an annular nozzle fully or partly surrounding the rear fuselage portion. In the embodiment shown in Fig. 1 the jet pipe 4 opens into a conduit 9 into which projects the end 5a of the rear fuselage portion 5. An annular nozzle 10 is thereby formed for the propelling jet which flows along the outer surface of the portion 5 and removes the boundary layer therefrom. The portion 5 is supported from the main fuselage 1 by streamlined struts 8. The cross section of the nozzle may be varied to adjust the jet thrust by axial displacement of the rear fuselage portion 5.
Patent GB-142024-A (GB)
Title: Improvements in chucks or workholders for use in the production of such articles as slip measuring gauges
IPC: B24B41/06
Filed: 1918-11-22
Abstract: 142,024. Imperial Trust for the Encouragement of Scientific and Industrial Research, Sears, J. E., and Brookes, A. J. C. Nov. 22, 1918. Work-holders. - Apparatus for holding a number of slip gauges or like articles, during lapping, comprises a work-holder having a body portion a upon which are formed a number of coplanar facets b projecting slightly above the surface of the body portion and adapted to receive the gauge blanks; the projection of the facets above the body portion enables guards d to be employed surrounding the facets and the blanks and thus preventing slipping of these. In cases where the adhesion between the plane faces of the blanks and of the facets is insufficient, electro-magnetic means may be employed to hold the blanks.
Patent GB-206195-A (GB)
Title: Improvements in or relating to boats propelled by manually operated mechanism
IPC: B63H16/18
Filed: 1921-09-09
Abstract: 206,195. Fleming, I. R. Sept. 9, 1921. Driving-arrangements for screw propellers.-A boat propelled by a screw propeller 28 operated bv a number of hand levers 1, longitudinal rods 4 and gearing, has a reversing mechanism controlled by means located in or adjacent a cockpit at the stem of the, boat. The levers 1, pivoted at 2 to the air chambers 3 of a lifeboat, are coupled by the rods 4 and drive by longitudinal connecting- rods 5 a crankshaft 7. A bevel wheel 29 on the shaft drives a bevel 30 on the shaft 27 of the propeller 28. The shaft 7 carries a pinion 15 above which are direction control pawls 14 positioned bv the lever 9. A rod 11 with handle 23 extends in a cockpit 20, and the rod is provided with notches fit into the edge 25 whereby it is retained in the positions for forward or reverse running, a spring 26 preventing the lever from jumping out of position. The cockpit 20 has a front partition 21 and a floor 22 extending across the boat, and a seat 24 for the coxswain is supported at the stern and on the thwart 12.
Patent GB-677439-A (GB)
Title: An improved variable-ratio transmission mechanism
IPC: G05G13/00
Filed: 1949-09-14
Abstract: 677,439. Universal joints. SUPPANCIC, G. O. Sept. 13, 1950 [Sept. 14, 1949], No. 23709/49. Class 80 (ii). [Also in Group XXXIII] A mechanism for transmitting angular motion with an infinitely variable ratio, within predetermined limits, comprises a Hooke's joint of which one fork is rocked by the driving member, a connection between the cruciform member and the driven member such that an oscillation of the former about one of its axes is reproduced in the latter, and means for varying the orientation of the second fork so that the degree through which the cruciform member is rocked by the driving member is also varied. The device is shown as applied to an aeroplane control column 12 which is pivoted for swinging movement in one plane on axis 13. The control column 12 is connected through link 20 and ball joint 21 to the driving member 19 of the device, which remains parallel to column 12. Driving member 19 terminates in a Hooke's joint comprising forks 18, 16 and cruciform member 17. Keyed to trunnion 171 of cruciform member 17 is a bevel pinion 25 which meshes with an equal bevel pinion 24 fast with driven shaft 23. With the Hooke's joint in the position shown, swing- ing movements of column 12 about pivot 13 produce similar swinging movements of driving member 19 about trunnions 172 and the driven shaft 23 remains stationary. If now the fork 16 is rotated through 90 deg., as described below, a similar swinging movement of driving member 19 rocks the cruciform 17 and bevel gears 25, 24 and driven shaft 23 in a 1:1 ratio. Thus the degree of motion transmitted from input mem-' ber 19 to driven shaft 23 may vary progressively from a 1 :1 to a 1:0 ratio depending upon the amount by which the fork 16 is rotated. The fork 16 is rotated to vary such ratio by means of a actuating motor 34, e.g. electrical, or a bellows device operated by an air-speed indicator, which moves lever 35 to rotate the casing 30 about the axis of spindle 23, whereby the internal teeth 29 formed on the casing rotate the pinion 28 carried by a fixed pin'27, the pinion 25, sleeve 15 and yoke 16. Movements of shaft 23 are transmitted to output lever 33, which is freely pivoted on the end of shaft 23, by gear 26 keyed to shaft 23, idler gear 31 carried by a stud fixed to lever 33 and meshing with gear 26 and internal gear teeth 29.
Patent GB-1039164-A (GB)
Title: Improvements in or relating to information transmitting arrangements
Inventor: HOOD DEREK LESLIE
IPC: H04L13/08
Filed: 1963-06-14
Abstract: 1,039,164. Electric selective signalling. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. June 14, 1963, No. 23710/63. Heading G4H. The invention relates to means for preventing errors due to contact bounce in apparatus in which information in the form of voltage signals derived from the successive closing in any order of a plurality of mechanical contact sets is transmitted to a plurality of electronic storage devices, each of the contact sets being connected over individual leads to all the storage devices, which are rendered exclusively responsive in turn to successive voltage signals under the control of a stepping device which steps from one position to the next on the cessation of a voltage signal. The voltage signals are also supplied to a guard circuit to which timing pulses are supplied. The guard circuit is shown in detail in Figs. 2 and 3 (not shown) and contains two bi-stable flip-flops the first of which is set during the first timing pulse to arrive when one of the contact sets is in the closed state, and thereupon applies a signal to inhibit the stepping device. The first timing pulse to arrive when all the contacts are open again sets the second flip-flop. The first timing pulse to occur after this at a time when the contacts are all open resets both flip-flops thereby removing the inhibiting signal. In front, the actual switching of the flip-flops is done by strobe pulses.
Patent GB-598636-A (GB)
Title: Improvements in or relating to drum brake and stub-axle assemblies for vehicles
IPC: F16D65/22
Filed: 1945-09-14
Abstract: 598,636. Drum brakes. BENDIX AVIATION CORPORATION. Sept. 14, 1945, No. 23775. Conventinn date, Nov. 13, 1944. [Class 103 (i)] A drum brake and stub axle assembly for a vehicle steering wheel comprises as a single casting or forging, a stub axle 28, steering knuckle 19, 21 and one or, as shown, a pair of hydraulic cylinders 44, 48 each having a pair of pistons arranged to act on adjacent ends of a pair of brake shoes to apply them to a drum 40. The shoes may be arranged to anchor at either end according to the direction of rotation of the drum as described for instance in Specification 544,949. The cylinders are connected by a pipe 54 and have supply and bleeder passages 56, 52.
Patent GB-190983-A (GB)
Title: Improvements in or relating to means for controlling fuel pumps for internal combustion engines
IPC: F02M59/02
Filed: 1921-10-20
Abstract: 190,983. Appelberg, C. Oct. 20, 1921. Addition to 170,846. Regulating delivery by opening suction valves; valve-gear.-In a fuel pump as described in the parent Specification, the suction valve is controlled by two lever systems operated by two cams or by a cam and a reciprocating member at least one of the lever systems comprising two connected levers. The lever systems are adjustable to vary the quantity of fuel injected and the moments of opening and closing the suction valve. In one form, two levers 15, 16 pivoted to a crank 32 engage two cams 11, 12 on the actuating shaft 7 of the pump and are connected by rods 34, 35 to levers 36, 37 adapted to operate an arm 39 engaging the stem 10 of the suction valve. The lever 36 is concentrically pivoted to a pin 38, while the lever 37 is eccentrically pivoted thereto. By adjusting the eccentric mounting of the lever 37, the moment at which the suction valve is. opened during the latter portion of the delivery stroke is varied, thereby varying the quantity of fuel injected. By adjusting the crank 32, the moments of opening and closing the valve are varied. In the form shown in Fig. 2, the valve is opened in the early part of the delivery stroke by a cam 11 through a lever 42, link 44, and lever 45, and in the later part by a lever 51 pivoted on the eccentric-rod of the plunger 2 and engaging. the portion 54 of the lever 45. The moment of injection may be varied by adjusting the eccentric pin 43 of the lever 42, and the duration of the injection by adjusting the eccentric pin 52 of an arm 53 to which the lever 51 is pivoted. The arm 45 is mounted on an eccentric pin 47, which may be adjusted by a hand lever 48 to open the valve.
Patent GB-298342-A (GB)
Title: An improved rotary internal combustion engine
IPC: F02B53/00
Filed: 1927-09-12
Abstract: 298,342. Northey, A J. Sept. 12, 1927. Movable-abutment type; working fluid supply; valve - gear; valves, distributing; driving-arrangements for motors. - A reversible rotary internal - combustion engine comprises two chambers A, B, each containing a pair of vaned and recessed rotors D, E, with a passage C for the transfer of a charge compressed in one chamber to the other chamber where it is ignited and drives both rotors of the pair simultaneously. Ported discs P on one of the rotors in each chamber control the passage of the compressed charge and the degree of compression is regulated by a hand-controlled valve U<1> in a bye-pass pipe. U which connects the top and bottom of the compression chamber. A four-way valve V<2> connected to the carburettor, to an exhaust pipe W<1>, and to pipes V, V<1> leading to the two chambers A, B permits of reversing by changing over the functions of the two chambers A, B, the spark plug of that chamber which acts as the expansion chamber being switched out of action. The two rotor shafts carry pinions Y<1>, which mesh internally and externally with a gear wheel Y on the driving shaft. The peripheries of the rotors may be toothed and the vanes provided with packing.
Patent GB-1132898-A (GB)
Title: Multi-stage screw treatment device
IPC: B29C48/40
Filed: 1966-05-31
Abstract: 1,132,898. Screw mixer. WERNER & PFLEIDERER. 31 May, 1966 [13 Aug., 1965], No. 24092/66. Heading B1C. In a process and apparatus for treating, in a press with intermeshing screws, plastic materials which decrease in volume by degassing, the material passes successively through a heating -and conveying section 3, 3<SP>1</SP>, a compression section 6, 6<SP>1</SP>; a degassing section 4, 4<SP>1</SP> to which vacuum is applied; a second compression section 8, 8<SP>1</SP>; and a conveying and discharging section 10, 10<SP>1</SP>. The first compression section 6, 6<SP>1</SP> consists of reverse screw flights and the second 8, 8<SP>1</SP> of reducing diameter screw portions; both compression sections also serve to seal off the degassing section. The discharge sections are of reduced diameter to match the reduced bulk of the material; the volume -of the screw thread grooves may also progressively be reduced for the same purpose. The several screw sections may be exchangeable. The casing I has a jacket, and the screws passages, for a heat exchange fluid. In another embodiment (see Figs. 7-9, not shown) there may be more than one pair of screws in a single casing.
Patent GB-532219-A (GB)
Title: Improvements in or relating to rail-clamping mechanism for travelling cranes and thelike
IPC: B66C9/18
Filed: 1939-08-22
Abstract: 532,219. Travelling cranes, bridges &c. ROBINS CONVEYING BELT CO. Aug. 22, 1939, No. 24180. Convention date, March 29. [Class 78 (iv)] [Also in Group XXXIV] Means for clamping travelling cranes and like structures to the track rails comprises a pair of jaws 10, 11 for clamping the sides of the head of each rail, pivoted to one another at 13. A rod 30 and a pair of compression springs 31 maintain the jaws free of the rail during travelling. To apply the grip a toothed bar 52 is forced downwards to swing toothed cam-shaped sectors 40 about their pivots 48 and at the same time to operate the toggle 38, 39 to swing the lever 37 outwards and thus swing the movable jaw by operating against the adjustable abutment 41. The toothed bar 52 is moved downwards by depressing a lever 57, Fig. 8. This swings a bell-crank 53, 58 so that the universally-jointed rod 68 operates the bar 52 while a restoring link 61 is moved to compress the spring 65. The pivoted jaw carries a rocking trunnioned gripping-member 26, while the fixed jaw carries a gripping member 24 having a rocking engagement with the member 26 which in turn can rock on the pivot 27. Springs normally maintain the member 26 in its central position. The weight of both jaws is supported by wheels 15 \ which run on the rail head. Slightly modified mechanism is described for clamping the sides of the head of a single rail.
Patent GB-150318-A (GB)
Title: Improved method of killing micro-organisms
IPC: A23L3/32
Filed: 1920-08-19
Abstract: 150,318. Elektro-Osmose Akt.-Ges., (Graf Schwerin Ges.). Aug. 19, 1019, [Convention date]. Immunizing and like serums; disinfecting. - Micro-organisms are killed by the action of a continuous current of low voltage and comparatively large current strength. Liquids to be treated receive an addition of common salt or other electrolyte and are placed in the centre compartment of a three-cell apparatus comprising a container divided longitudinally by diaphragms which carry on the sides remote from the centre compartment electrodes of net-work or lattice work. In apparatus having an effective area of 400 sq. cms. a current of 10-12 amperes at 20-30 volts is employed. Salt is added during the treatment to maintain the strength of the electrolyte, which may be kept in circulation. À by stirring or by the introduction of inert gas. Water is circulated through the electrode compartments to regulate the temperature and to remove electrolytic products. At the conclusion of the process surplus electrolyte may be removed electro-osmotically. Solids to be treated are saturated with an electrolyte and placed in the centre compartment or are suspended in the electrolyte. Data are given as to the sterilization of pure cultures of various organisms and the sterilization of diphtheria serum without destroying its antitoxin content.
Patent GB-155922-A (GB)
Title: Improved apparatus for controlling the delivery of glass from furnaces to moulds and the like
IPC: C03B7/086
Filed: 1919-10-03
Abstract: 155,922. Roots, J. D. Oct. 3, 1919. Discharging.-In apparatus for delivering uniform charges of molten glass from a tank furnace of the type in which a plunger is reciprocated above the discharge hole, the plunger C is of hollow cylindrical form. The air is initially drawn out of the hollow plunger through a passage C<2> and tap C<3>. During the upward stroke " a vacuum is formed or tends to be formed within the plunger C. In a modification, the stroke is adjustable.
Patent GB-912968-A (GB)
Title: Improvements in or relating to friction brakes
Inventor: CHOUINGS LESLIE CYRIL
IPC: F16D69/02
Filed: 1960-07-12
Abstract: 912,968. Friction brake pads. AUTOMOTIVE PRODUCTS CO. Ltd. June 6, 1961 [July 12, 1960], No. 24275/60. Class 103 (1). A friction brake lining comprising inflammable vaporizable constituents has its edges covered with a non-inflammable material having a wear rate at least as great as the lining material. The covering of a lining, or pad, having bonding substances such as resins, may be of zinc sprayed in a molten condition or of asbestos mixed with a binder which does not give off inflammable vapour.
Patent GB-854792-A (GB)
Title: Improvements relating to screw nuts
Inventor: SMITH DAVID WILLIAM
IPC: F16B33/04
Filed: 1958-07-29
Abstract: 854,792. Nuts &c. NEWALL & CO. Ltd., A. P. April 9, 1959 [July 29, 1958], No. 24312/58. Class 89(1). A nut comprises a body 6 with a screwedbore 8, and a tool-engaging-part 7 joined to the body and formed with a larger plain-bore 9, there being a weakened-portion between parts 6, 7, e.g. a neck 5, which will shear at a predetermined tightening-torque applied to part 7.